$553 Find Cheap Flights from Sydney to Siem Reap

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Siem Reap departing on 20/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Siem Reap

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Siem Reap, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Siem Reap, as well as popular online travel agencies
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Flight Deals

Book Cheap Sydney to Siem Reap Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Siem Reap that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Siem Reap

Fri, 4 Sep - Tue, 15 Sep
Multiple Airlines Logo
10:15 - 21:05
SYD
-
SAI
13h 50m
1 stop
Multiple Airlines Logo
09:35 - 07:20
SAI
-
SYD
18h 45m
1 stop
$831Multiple Airlines
Fri, 4 Sep - Thu, 17 Sep
Multiple Airlines Logo
10:15 - 21:05
SYD
-
SAI
13h 50m
1 stop
Multiple Airlines Logo
15:00 - 10:10
SAI
-
SYD
16h 10m
1 stop
$905Multiple Airlines
Thu, 3 Sep - Wed, 16 Sep
VietJet Air Logo
10:15 - 18:05
SYD
-
SAI
34h 50m
2 stops
VietJet Air Logo
19:05 - 07:20
SAI
-
SYD
33h 15m
2 stops
$920VietJet Air
Wed, 2 Sep - Tue, 15 Sep
Multiple Airlines Logo
10:15 - 21:55
SYD
-
SAI
14h 40m
1 stop
Multiple Airlines Logo
09:35 - 07:20
SAI
-
SYD
18h 45m
1 stop
$923Multiple Airlines
Thu, 3 Sep - Fri, 18 Sep
Singapore Airlines Logo
07:25 - 15:10
SYD
-
SAI
34h 45m
1 stop
Singapore Airlines Logo
10:30 - 06:05
SAI
-
SYD
16h 35m
1 stop
$926Singapore Airlines
Thu, 3 Sep - Tue, 15 Sep
Multiple Airlines Logo
10:15 - 08:45
SYD
-
SAI
25h 30m
1 stop
Multiple Airlines Logo
18:30 - 10:10
SAI
-
SYD
12h 40m
1 stop
$937Multiple Airlines
Fri, 4 Sep - Wed, 16 Sep
Multiple Airlines Logo
10:15 - 21:05
SYD
-
SAI
13h 50m
1 stop
Multiple Airlines Logo
15:35 - 11:45
SAI
-
SYD
17h 10m
2 stops
$955Multiple Airlines
Thu, 21 May - Wed, 27 May
Singapore Airlines Logo
11:00 - 15:10
SYD
-
SAI
31h 10m
1 stop
Singapore Airlines Logo
10:30 - 06:05
SAI
-
SYD
16h 35m
1 stop
$958Singapore Airlines
Fri, 4 Sep - Mon, 21 Sep
Multiple Airlines Logo
10:15 - 21:05
SYD
-
SAI
13h 50m
1 stop
Multiple Airlines Logo
15:35 - 11:45
SAI
-
SYD
17h 10m
2 stops
$959Multiple Airlines
Mon, 31 Aug - Thu, 17 Sep
Vietnam Airlines Logo
10:15 - 18:20
SYD
-
SAI
11h 05m
1 stop
Vietnam Airlines Logo
18:05 - 12:15
SAI
-
SYD
15h 10m
1 stop
$961Vietnam Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Siem Reap flights

Get data-powered insights and trends into flights from Sydney to Siem Reap to help you find the cheapest flights, the best time to fly, and much more.

How much is a return flight from Sydney to Region of Siem Reap?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to Region of Siem Reap departing in September.

What is the cheapest month to fly from Sydney to Siem Reap?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Siem Reap, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Siem Reap is April, when tickets cost $446 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of return tickets is $963 and $843 respectively.

Good to know

Low seasonFebruary
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (57% more expensive on average)

FAQs - booking Siem Reap flights

  • How does KAYAK find such low prices on flights from Sydney to Siem Reap?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Siem Reap.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Siem Reap?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sydney to Siem Reap is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Siem Reap?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Sydney to Siem Reap with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Siem Reap?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sydney to Siem Reap up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sydney to Siem Reap

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Siem Reap. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Siem Reap? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1509 reviews
8.0Entertainment
8.3Boarding
8.6Crew
7.8Food
8.0Comfort
Airline reviews

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

2.0 MediocreAnonymous, May 2026
LAX - NRT
Read more Singapore Airlines reviews

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

Really great service throughout and the food was really nice. I can highly recommend thank you very much.

Never book through Kayak. They can offload booking to third parties that are completely horrible.

Kayak really screwed up by offloading the booking to a third party. They were completely inept and caused a bunch of toil. I will never use Kayak again.

I had ordered vegetarian food. What I was presented was extremely dissatisfying and not up to the mark. I pretty much did not eat entire 19 hours. For.an airline voted as best in business, it was extremely disappointing. Seats were not comfortable to sleep. Entertainment system didn’t have much choice. WiFi didn’t work for more than half the time. Cabin crew were also difficult to understand. A bit of diversity like Emirates crew would go a long way.

Excellent crew service. Professional, courteous. Service with a smile. Good food Very decent flight experience

Overall were very good and I was satisfied w/ all the food and services.

First time flying with Singapore airlines and I’ll give them two thumbs up 👍 👍

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

The flight crew was phenominal! We couldn't have asked for any better. They were experienced professionals.

I thought I already provided this feedback. 12 hours with no wifi is unacceptable. Lay flat is nice but a bit cramped.

The vietnam airlines app was not able to allow checkin with the confirmation nor with the ticket number. This led to quite a bit of consternation. Speaking with a colleague from Hanoi, he did tell me that their app is not the best. It may be best to inform travelers to only use the link and to plan on checking in at the airport for this airline. The check-in was very easy and the staff were excellent.

flight departure was late, with no updates on status of departure

The aircraft was little tired but the food and service was outstanding

It was ok, it felt more like an internal flight than an international flight so I guess expected a slightly better standard. Nothing really wrong with it but there was no inflight entertainment. Food and service was good.

This was our fourth domestic flight with Vietnam Airlines, and once again we found the experience very suitable. Check-in was easy and efficient. They did take our carry-on luggage, but that was fine. I’m actually happy not to deal with it on such a short flight. The flight was just over an hour, departed on time, and we climbed above the clouds into a beautiful sunset. Even on such a short flight, they served water, which we appreciated. Luggage came out into carousel in Nha Trang in good time and off we went to meet our GRAB. Also, Vietnam Airlines have easy to locate ground level offices in cities and towns where you can get assistance with staff. I liked this service as we did go visit one in Nha Trang. We would definitely recommend Vietnam Airlines and wouldn’t hesitate to fly with them again.

Really good 👍 This was our first time flying with Vietnam Airlines. It was a short domestic flight, so no meal service, but boarding was organized and the flight departed and arrived on schedule. The flight attendants were professional and neatly presented. All in all, a very good first experience. We would recommend Vietnam Airlines.

We flew with their partner VESCO on a small plane, it was a really good flight. There was no food or entertainment as it’s a one hour hopper flight.

The flight boarded and departed pretty much on time as it’s just a one hour flight there is no food or entertainment so I marked that at the neutral but they do offer water and I’m sure if you needed some food you could bring your own onboard. This was our third internal flight with Vietnam Airways and I recommend them.

This is a very short commuter flight, so there is no food or flight entertainment. Hence, I marked it in the neutral flight left on time. The plane was full pretty much and it was a pretty easy flight overall very good.

Everything you need to know for your flight from Sydney to Siem Reap

Information on your arrival and departure airports